Knocking over device for flat hosiery frames



Aug. 22, 1933- K. R. LIEBERKNECHT 1,923,985

KNOCKING OVER DEVICE 'FOR FLAT HOSIERY FRAMES Filed Sept. 5, 1930 Patented Aug. 22,` 1933 UNITED 'sTA'TEs KNooKiNG ovER DEvIoE Fon FLA'r HosnmY mms t Karl Richard Lieberknecht, Oberlungwitz,

Germany Application September 5, 1930, Serial No. 479,911,

and in 3 Claims.

This invention relates to a knocking over device for fiat. hosiery frames, in whichthe knocking over for loop rows of different length is eifected in a simple manner automatically.

5 The essential characteristic feature consists inthat between the' knocking over comb and the elements actuating the same a yieldable, ad-

justable connection is inserted, which permits' 3 and roller levers 4. On the shaft 2 several levers 5 are fixed which transmit the rotation of the shaft upon the knocking over comb. According to the invention these levers 5 do not act directly upon the knocking over comb. The levers 5 move independently and their movement is transmitted upon the knocking over comb 1 by an interposed yielding connection, i.e. a pull spring 6 inserted between the elements 1 and 5 and pulling the comb 1 against an abutment '7 on the lower side of the lever 5. rIhe knocking over comb 1 has a lateral arm 9 in which an adjusting 'screw 8 is screwed, the free end of said screw bearing against the abutment 7. By turning the screw 8 the tension of .the spring 6 can be regulated within certain limits. The cam 3 is of such shape that in long loop rows a just suflicient knocking over tension is obtained. For shorter loop rows the knocking over tension would become too great, when the vertical movement of the needles is the same; as the loops are shorter. When the knocking 40 over tension determined by the tension, of 'the spring 6, has been exceeded, the knocking over comb yields, distending the spring,so thatv a good knocking over without excessive straining of the loops is obtained.

I For the pull spring any other suitable spring Germany January 18, 1930 needles in horizontal` direction being added to the effect of the spring connectionl described.

I claim:-

1. In a flat hosiery frame according to the cotton system'the combination of a knocking over comb, a movable frame carrying said comb, an oscillatable lever adapted to control the movement of said frame, a cam adapted tol actuate said lever, and resilient means adapted to allow the yielding of said knocking over comb under strong pressure during the knocking over.

2. In a flat hosiery frame according to the cotton system, the combination of a knocking over comb, a slidable frame carrying said comb, an oscillatable lever adapted to control the movement of said frame, a cam adapted to actuate said lever, an adjustable stop on said frame adapted to support said lever, and a spring between said lever and said frame adapted to allow said frame to descend under excessive knocking over pressure to prevent a'tearing of the stitches to be knocked over in the case of short sinking of the loops.

3. In` a flat hosiery frame according to the cotton system, the combination of a knocking over comb, a frame movable in the direction of its longitudinal axis and carrying said comb, an oscillatable lever adapted to control the niovement of said frame, a cam adapted to actuate said lever and resilient means adapted| to allow thel yielding of said frame and knocking over comb under strong pressure during the knocking over.

KARL RICHRD LIBERNECHT. 

